m32r: Rename STI/CLI macros
[sfrench/cifs-2.6.git] / scripts / kconfig / conf.c
1 /*
2  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3  * Released under the terms of the GNU GPL v2.0.
4  */
5
6 #include <ctype.h>
7 #include <stdlib.h>
8 #include <stdio.h>
9 #include <string.h>
10 #include <unistd.h>
11 #include <time.h>
12 #include <sys/stat.h>
13
14 #define LKC_DIRECT_LINK
15 #include "lkc.h"
16
17 static void conf(struct menu *menu);
18 static void check_conf(struct menu *menu);
19
20 enum {
21         ask_all,
22         ask_new,
23         ask_silent,
24         set_default,
25         set_yes,
26         set_mod,
27         set_no,
28         set_random
29 } input_mode = ask_all;
30 char *defconfig_file;
31
32 static int indent = 1;
33 static int valid_stdin = 1;
34 static int conf_cnt;
35 static char line[128];
36 static struct menu *rootEntry;
37
38 static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
39
40 static const char *get_help(struct menu *menu)
41 {
42         if (menu_has_help(menu))
43                 return menu_get_help(menu);
44         else
45                 return nohelp_text;
46 }
47
48 static void strip(char *str)
49 {
50         char *p = str;
51         int l;
52
53         while ((isspace(*p)))
54                 p++;
55         l = strlen(p);
56         if (p != str)
57                 memmove(str, p, l + 1);
58         if (!l)
59                 return;
60         p = str + l - 1;
61         while ((isspace(*p)))
62                 *p-- = 0;
63 }
64
65 static void check_stdin(void)
66 {
67         if (!valid_stdin && input_mode == ask_silent) {
68                 printf(_("aborted!\n\n"));
69                 printf(_("Console input/output is redirected. "));
70                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
71                 exit(1);
72         }
73 }
74
75 static void conf_askvalue(struct symbol *sym, const char *def)
76 {
77         enum symbol_type type = sym_get_type(sym);
78         tristate val;
79
80         if (!sym_has_value(sym))
81                 printf("(NEW) ");
82
83         line[0] = '\n';
84         line[1] = 0;
85
86         if (!sym_is_changable(sym)) {
87                 printf("%s\n", def);
88                 line[0] = '\n';
89                 line[1] = 0;
90                 return;
91         }
92
93         switch (input_mode) {
94         case set_no:
95         case set_mod:
96         case set_yes:
97         case set_random:
98                 if (sym_has_value(sym)) {
99                         printf("%s\n", def);
100                         return;
101                 }
102                 break;
103         case ask_new:
104         case ask_silent:
105                 if (sym_has_value(sym)) {
106                         printf("%s\n", def);
107                         return;
108                 }
109                 check_stdin();
110         case ask_all:
111                 fflush(stdout);
112                 fgets(line, 128, stdin);
113                 return;
114         case set_default:
115                 printf("%s\n", def);
116                 return;
117         default:
118                 break;
119         }
120
121         switch (type) {
122         case S_INT:
123         case S_HEX:
124         case S_STRING:
125                 printf("%s\n", def);
126                 return;
127         default:
128                 ;
129         }
130         switch (input_mode) {
131         case set_yes:
132                 if (sym_tristate_within_range(sym, yes)) {
133                         line[0] = 'y';
134                         line[1] = '\n';
135                         line[2] = 0;
136                         break;
137                 }
138         case set_mod:
139                 if (type == S_TRISTATE) {
140                         if (sym_tristate_within_range(sym, mod)) {
141                                 line[0] = 'm';
142                                 line[1] = '\n';
143                                 line[2] = 0;
144                                 break;
145                         }
146                 } else {
147                         if (sym_tristate_within_range(sym, yes)) {
148                                 line[0] = 'y';
149                                 line[1] = '\n';
150                                 line[2] = 0;
151                                 break;
152                         }
153                 }
154         case set_no:
155                 if (sym_tristate_within_range(sym, no)) {
156                         line[0] = 'n';
157                         line[1] = '\n';
158                         line[2] = 0;
159                         break;
160                 }
161         case set_random:
162                 do {
163                         val = (tristate)(random() % 3);
164                 } while (!sym_tristate_within_range(sym, val));
165                 switch (val) {
166                 case no: line[0] = 'n'; break;
167                 case mod: line[0] = 'm'; break;
168                 case yes: line[0] = 'y'; break;
169                 }
170                 line[1] = '\n';
171                 line[2] = 0;
172                 break;
173         default:
174                 break;
175         }
176         printf("%s", line);
177 }
178
179 int conf_string(struct menu *menu)
180 {
181         struct symbol *sym = menu->sym;
182         const char *def;
183
184         while (1) {
185                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
186                 printf("(%s) ", sym->name);
187                 def = sym_get_string_value(sym);
188                 if (sym_get_string_value(sym))
189                         printf("[%s] ", def);
190                 conf_askvalue(sym, def);
191                 switch (line[0]) {
192                 case '\n':
193                         break;
194                 case '?':
195                         /* print help */
196                         if (line[1] == '\n') {
197                                 printf("\n%s\n", get_help(menu));
198                                 def = NULL;
199                                 break;
200                         }
201                 default:
202                         line[strlen(line)-1] = 0;
203                         def = line;
204                 }
205                 if (def && sym_set_string_value(sym, def))
206                         return 0;
207         }
208 }
209
210 static int conf_sym(struct menu *menu)
211 {
212         struct symbol *sym = menu->sym;
213         int type;
214         tristate oldval, newval;
215
216         while (1) {
217                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
218                 if (sym->name)
219                         printf("(%s) ", sym->name);
220                 type = sym_get_type(sym);
221                 putchar('[');
222                 oldval = sym_get_tristate_value(sym);
223                 switch (oldval) {
224                 case no:
225                         putchar('N');
226                         break;
227                 case mod:
228                         putchar('M');
229                         break;
230                 case yes:
231                         putchar('Y');
232                         break;
233                 }
234                 if (oldval != no && sym_tristate_within_range(sym, no))
235                         printf("/n");
236                 if (oldval != mod && sym_tristate_within_range(sym, mod))
237                         printf("/m");
238                 if (oldval != yes && sym_tristate_within_range(sym, yes))
239                         printf("/y");
240                 if (menu_has_help(menu))
241                         printf("/?");
242                 printf("] ");
243                 conf_askvalue(sym, sym_get_string_value(sym));
244                 strip(line);
245
246                 switch (line[0]) {
247                 case 'n':
248                 case 'N':
249                         newval = no;
250                         if (!line[1] || !strcmp(&line[1], "o"))
251                                 break;
252                         continue;
253                 case 'm':
254                 case 'M':
255                         newval = mod;
256                         if (!line[1])
257                                 break;
258                         continue;
259                 case 'y':
260                 case 'Y':
261                         newval = yes;
262                         if (!line[1] || !strcmp(&line[1], "es"))
263                                 break;
264                         continue;
265                 case 0:
266                         newval = oldval;
267                         break;
268                 case '?':
269                         goto help;
270                 default:
271                         continue;
272                 }
273                 if (sym_set_tristate_value(sym, newval))
274                         return 0;
275 help:
276                 printf("\n%s\n", get_help(menu));
277         }
278 }
279
280 static int conf_choice(struct menu *menu)
281 {
282         struct symbol *sym, *def_sym;
283         struct menu *child;
284         int type;
285         bool is_new;
286
287         sym = menu->sym;
288         type = sym_get_type(sym);
289         is_new = !sym_has_value(sym);
290         if (sym_is_changable(sym)) {
291                 conf_sym(menu);
292                 sym_calc_value(sym);
293                 switch (sym_get_tristate_value(sym)) {
294                 case no:
295                         return 1;
296                 case mod:
297                         return 0;
298                 case yes:
299                         break;
300                 }
301         } else {
302                 switch (sym_get_tristate_value(sym)) {
303                 case no:
304                         return 1;
305                 case mod:
306                         printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
307                         return 0;
308                 case yes:
309                         break;
310                 }
311         }
312
313         while (1) {
314                 int cnt, def;
315
316                 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
317                 def_sym = sym_get_choice_value(sym);
318                 cnt = def = 0;
319                 line[0] = 0;
320                 for (child = menu->list; child; child = child->next) {
321                         if (!menu_is_visible(child))
322                                 continue;
323                         if (!child->sym) {
324                                 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
325                                 continue;
326                         }
327                         cnt++;
328                         if (child->sym == def_sym) {
329                                 def = cnt;
330                                 printf("%*c", indent, '>');
331                         } else
332                                 printf("%*c", indent, ' ');
333                         printf(" %d. %s", cnt, menu_get_prompt(child));
334                         if (child->sym->name)
335                                 printf(" (%s)", child->sym->name);
336                         if (!sym_has_value(child->sym))
337                                 printf(" (NEW)");
338                         printf("\n");
339                 }
340                 printf("%*schoice", indent - 1, "");
341                 if (cnt == 1) {
342                         printf("[1]: 1\n");
343                         goto conf_childs;
344                 }
345                 printf("[1-%d", cnt);
346                 if (menu_has_help(menu))
347                         printf("?");
348                 printf("]: ");
349                 switch (input_mode) {
350                 case ask_new:
351                 case ask_silent:
352                         if (!is_new) {
353                                 cnt = def;
354                                 printf("%d\n", cnt);
355                                 break;
356                         }
357                         check_stdin();
358                 case ask_all:
359                         fflush(stdout);
360                         fgets(line, 128, stdin);
361                         strip(line);
362                         if (line[0] == '?') {
363                                 printf("\n%s\n", get_help(menu));
364                                 continue;
365                         }
366                         if (!line[0])
367                                 cnt = def;
368                         else if (isdigit(line[0]))
369                                 cnt = atoi(line);
370                         else
371                                 continue;
372                         break;
373                 case set_random:
374                         def = (random() % cnt) + 1;
375                 case set_default:
376                 case set_yes:
377                 case set_mod:
378                 case set_no:
379                         cnt = def;
380                         printf("%d\n", cnt);
381                         break;
382                 }
383
384         conf_childs:
385                 for (child = menu->list; child; child = child->next) {
386                         if (!child->sym || !menu_is_visible(child))
387                                 continue;
388                         if (!--cnt)
389                                 break;
390                 }
391                 if (!child)
392                         continue;
393                 if (line[strlen(line) - 1] == '?') {
394                         printf("\n%s\n", get_help(child));
395                         continue;
396                 }
397                 sym_set_choice_value(sym, child->sym);
398                 if (child->list) {
399                         indent += 2;
400                         conf(child->list);
401                         indent -= 2;
402                 }
403                 return 1;
404         }
405 }
406
407 static void conf(struct menu *menu)
408 {
409         struct symbol *sym;
410         struct property *prop;
411         struct menu *child;
412
413         if (!menu_is_visible(menu))
414                 return;
415
416         sym = menu->sym;
417         prop = menu->prompt;
418         if (prop) {
419                 const char *prompt;
420
421                 switch (prop->type) {
422                 case P_MENU:
423                         if (input_mode == ask_silent && rootEntry != menu) {
424                                 check_conf(menu);
425                                 return;
426                         }
427                 case P_COMMENT:
428                         prompt = menu_get_prompt(menu);
429                         if (prompt)
430                                 printf("%*c\n%*c %s\n%*c\n",
431                                         indent, '*',
432                                         indent, '*', prompt,
433                                         indent, '*');
434                 default:
435                         ;
436                 }
437         }
438
439         if (!sym)
440                 goto conf_childs;
441
442         if (sym_is_choice(sym)) {
443                 conf_choice(menu);
444                 if (sym->curr.tri != mod)
445                         return;
446                 goto conf_childs;
447         }
448
449         switch (sym->type) {
450         case S_INT:
451         case S_HEX:
452         case S_STRING:
453                 conf_string(menu);
454                 break;
455         default:
456                 conf_sym(menu);
457                 break;
458         }
459
460 conf_childs:
461         if (sym)
462                 indent += 2;
463         for (child = menu->list; child; child = child->next)
464                 conf(child);
465         if (sym)
466                 indent -= 2;
467 }
468
469 static void check_conf(struct menu *menu)
470 {
471         struct symbol *sym;
472         struct menu *child;
473
474         if (!menu_is_visible(menu))
475                 return;
476
477         sym = menu->sym;
478         if (sym && !sym_has_value(sym)) {
479                 if (sym_is_changable(sym) ||
480                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
481                         if (!conf_cnt++)
482                                 printf(_("*\n* Restart config...\n*\n"));
483                         rootEntry = menu_get_parent_menu(menu);
484                         conf(rootEntry);
485                 }
486         }
487
488         for (child = menu->list; child; child = child->next)
489                 check_conf(child);
490 }
491
492 int main(int ac, char **av)
493 {
494         int i = 1;
495         const char *name;
496         struct stat tmpstat;
497
498         if (ac > i && av[i][0] == '-') {
499                 switch (av[i++][1]) {
500                 case 'o':
501                         input_mode = ask_new;
502                         break;
503                 case 's':
504                         input_mode = ask_silent;
505                         valid_stdin = isatty(0) && isatty(1) && isatty(2);
506                         break;
507                 case 'd':
508                         input_mode = set_default;
509                         break;
510                 case 'D':
511                         input_mode = set_default;
512                         defconfig_file = av[i++];
513                         if (!defconfig_file) {
514                                 printf(_("%s: No default config file specified\n"),
515                                         av[0]);
516                                 exit(1);
517                         }
518                         break;
519                 case 'n':
520                         input_mode = set_no;
521                         break;
522                 case 'm':
523                         input_mode = set_mod;
524                         break;
525                 case 'y':
526                         input_mode = set_yes;
527                         break;
528                 case 'r':
529                         input_mode = set_random;
530                         srandom(time(NULL));
531                         break;
532                 case 'h':
533                 case '?':
534                         fprintf(stderr, "See README for usage info\n");
535                         exit(0);
536                 }
537         }
538         name = av[i];
539         if (!name) {
540                 printf(_("%s: Kconfig file missing\n"), av[0]);
541                 exit(1);
542         }
543         conf_parse(name);
544         //zconfdump(stdout);
545         switch (input_mode) {
546         case set_default:
547                 if (!defconfig_file)
548                         defconfig_file = conf_get_default_confname();
549                 if (conf_read(defconfig_file)) {
550                         printf("***\n"
551                                 "*** Can't find default configuration \"%s\"!\n"
552                                 "***\n", defconfig_file);
553                         exit(1);
554                 }
555                 break;
556         case ask_silent:
557                 if (stat(".config", &tmpstat)) {
558                         printf(_("***\n"
559                                 "*** You have not yet configured your kernel!\n"
560                                 "*** (missing kernel .config file)\n"
561                                 "***\n"
562                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
563                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
564                                 "***\n"));
565                         exit(1);
566                 }
567         case ask_all:
568         case ask_new:
569                 conf_read(NULL);
570                 break;
571         case set_no:
572         case set_mod:
573         case set_yes:
574         case set_random:
575                 name = getenv("KCONFIG_ALLCONFIG");
576                 if (name && !stat(name, &tmpstat)) {
577                         conf_read_simple(name, S_DEF_USER);
578                         break;
579                 }
580                 switch (input_mode) {
581                 case set_no:     name = "allno.config"; break;
582                 case set_mod:    name = "allmod.config"; break;
583                 case set_yes:    name = "allyes.config"; break;
584                 case set_random: name = "allrandom.config"; break;
585                 default: break;
586                 }
587                 if (!stat(name, &tmpstat))
588                         conf_read_simple(name, S_DEF_USER);
589                 else if (!stat("all.config", &tmpstat))
590                         conf_read_simple("all.config", S_DEF_USER);
591                 break;
592         default:
593                 break;
594         }
595
596         if (input_mode != ask_silent) {
597                 rootEntry = &rootmenu;
598                 conf(&rootmenu);
599                 if (input_mode == ask_all) {
600                         input_mode = ask_silent;
601                         valid_stdin = 1;
602                 }
603         } else if (conf_get_changed()) {
604                 name = getenv("KCONFIG_NOSILENTUPDATE");
605                 if (name && *name) {
606                         fprintf(stderr, _("\n*** Kernel configuration requires explicit update.\n\n"));
607                         return 1;
608                 }
609         } else
610                 goto skip_check;
611
612         do {
613                 conf_cnt = 0;
614                 check_conf(&rootmenu);
615         } while (conf_cnt);
616         if (conf_write(NULL)) {
617                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
618                 return 1;
619         }
620 skip_check:
621         if (input_mode == ask_silent && conf_write_autoconf()) {
622                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
623                 return 1;
624         }
625
626         return 0;
627 }